ok i have a 92 hatch with a jdm d15b. I also have a hatch as a parts car and it has a d15b7. I know obviously the b7 is non vtec and the b is. But my question is there a difference in the blocks? If the blocks are the same i was going to rebuild the b7 so that way i could still drive everyday and just put the b head on when i swap. Thanks.